Movable block set for curtain

ABSTRACT

A removable block set for a window covering includes an inner block, an outer block and at least a connecting block between the inner block and the outer block. The inner block, the connecting block and the outer block are assembled together through the tenons and the slot tunnels therebetween, and the removable block set can be installed at two sections of the cases of the upper and the lower rails of the window covering. Therefore, through changing the whole length of the removable block set, the length of the upper and the lower rails (including the removable block set) may have a better conformation to the width of the window, and a more convenient installation of the window covering can be provided.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention is related to an improvement of removable block set for window covering, and more particularly to a removable block set capable of being mounted at respective two ends of an upper and a lower rails of a window covering for randomly changing the lengths of the rails, depending on a real demand as installing the window covering, through a partially detachable connected block set.

2. Description of the Related Art

In the market, the common window covering structure, such as Window covering, Pleated blind, mainly includes a set of upper rail and lower rail which are oppositely separated at the top and the bottom, foldable blinds mounted between the upper and the lower rails, and other components, such as pulling rope or remote controller, for controlling a folding or unfolding of the blinds so as to achieve light block or decoration.

Furthermore, although many window coverings sold in the store need to be assembled and installed by the user himself at home, this kind of self-assembled window covering only provides several common standards so that even the user bought a window covering from the standards after measuring the real width of the windows, a discrepancy still might occur between the bought window covering and window when the user goes to install the window covering. For example, tie width of the upper and the lower rails and of the blinds might be slightly wider than that of the window so that when installing, the user might need to cut the blinds for fitting in with the window; however, it is not easy to cut the tipper and the lower rails and a help from the professional workers might still need. Therefore, it is quite inconvenient. In addition, after the cutting, the whole structure of window covering, including the upper and the lower rails and the blinds, might be spoiled so as to influence the beauty of the house.

SUMMARY OF THE INVENTION

An object of the present invention is to provide an improvement of removable block set for window covering so that the user, as installing, can easily match the upper and the lower rails with die window through changing the length of the removable block set

The scheme provided by the present invention for solving the problem in the prior arts is:

The improvement of removable block set for a window covering, comprising an inner block, an outer block and at least a connecting block between the inner block and the outer block, wherein:

the inner block has an assembling portion, the assembling portion can be any structure convenient for assembling and disassembling, and in this embodiment, the inner block has an engaging space formed at the other side thereof and the engaging space has a slot tunnel correspondingly formed at an inner side thereof;

the connecting block is assembled in the engaging space of the inner block, the connecting block has an engaging portion formed at one side thereof, which faces the inner block, the engaging portion having a tenon at an outer side thereof, and the connecting block has an engaging space formed on tie other side thereof for engaging with the engaging portion, in this embodiment, the engaging space having a slot tunnel formed at an inner side thereof for correspondingly engaging with the tenon; and

the outer block is assembled to one side of the connecting block which is opposite to the side thereof facing the inner block, the outer block has an engaging portion formed at one side thereof facing the connecting block for correspondingly engaging with the engaging space of adjacent connecting block, and the engaging portion has a tenon formed at an outer side thereof.

Through assembling the structures described above, the removable block set can be assembled on two ends of the upper and the lower rails of the window covering, and through the detachable design of the tenon and the slot tunnel between the inner block, the connecting block and the outer block, the length of the removable block set can be adjusted by changing the number of the connecting block. Thereby, when the upper and the lower rails of the window covering are installed in the window, people can conform the length of the rails (including the removable block set) to the width of the window. Therefore, it is unnecessary to cut the upper and the lower rails, and the appearance of the window covering will not be spoiled. Hence, this invention provides convenience to the users for assembling the window covering by themselves.

Further scope of the applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will become more filly understood from the following detailed description and the accompanying drawings, which are given by way of illustration only, and thus are not limitative of the present invention, and wherein:

FIG. 1 is a three-dimensional decomposition drawing showing the removable block set of the present invention;

FIG. 2 is a sectional view showing the removable block set installed in the rail according to the present invention;

FIG. 3 a three-dimensional decomposition drawing showing another embodiment of the removable block set according to the present invention;

FIG. 4 is a three-dimensional decomposition drawing showing the removable block set installed in the rail according to the present invention; and

FIG. 5 is a three-dimensional decomposition drawing showing the removable block set after a length thereof has been changed according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Please refer to FIGS. 1 and 2. The removable block set 1 of the present invention includes an inner block 10, an outer block 30 and at least one connecting block 20 located between the inner block 10 and the outer block 30, and the inner block 10, the connecting block 20 and the outer block 30 are assembled through a mutual assembling between tenons 211, 311 and slot tunnels 121, 221 so as to facilitate disassembling, wherein:

The inner block 10 has an assembling portion 11 formed at one side thereof for assembling with two sides of tipper and lower rails 41, 42 of the Window covering 40 and has an engaging space 12 formed at the other side thereof, wherein the engaging space 12 has a slot tunnel 121 correspondingly formed at an inner side thereof.

The connecting block 20 is assembled in the engaging space 12 of the inner block 10 so that when there are plural connecting blocks 20, the shape and the configuration of each connecting block may be formed as the same. Further, each connecting block 20 has an engaging portion 21 formed at one side thereof which faces the inner block 10, and the engaging portion 21 has a tenon 211 at an outer side thereof for engaging with the slot tunnel 121 of the engaging space 12 of the inner block 10. And, the other side of each connecting block 20 has an engaging space 22 formed thereon for engaging with the engaging portion 21, and the engaging space 22 has a slot tunnel 221 formed at an inner side thereof

The outer block 30 is assembled to one side of the connecting block 20 which is opposite to the side thereof facing the inner block 10. Moreover, the outer block 30 has an engaging portion 31 formed at one aide thereof facing the connecting block 20 for correspondingly engaging with the engaging space 22 of adjacent connecting block 20, and the engaging portion 31 has a tenon 311 formed at an outer side thereof for engaging with the slot tunnel 221 of the engaging space 22 of the connecting block 20, which is adjacent to the inner block 10.

The tenon 211 of each connecting block 20 and the tenon 311 of the outer block 30 are mounted on opposite edges or four edges of the outer side of the engaging portions 21, 31, respectively, and the tenons 211, 311 are formed to be arc protrusions which respectively have slot 212, 312 mounted on two sides thereof (as shown in FIGS. 1 and 2, they only disclosed the structure of arc tenon design. The protrusion can be the tenon or any kind of engaging structure). Further, the engaging space 12 of the inner block 10 and the engaging space 22 of each connecting block 20 can have arc slot tunnel corresponding to the arc protrusions, thereby, as shown in FIG. 2, the inner block 10, each connecting block 20 and the outer block 30 can be assembled quickly through the arc protrusion and the arc slot tunnel.

The frame 23 of each connecting block 20 and the frame 32 of the outer block 30 respectively have an indentation 231, 321, thereby the assembled removable block set 1 including the inner block 10, each connecting block 20 and the outer block 30 can be quickly disassembled through the indentations 231, 321.

An assembling portion 11 of the inner block 10 can have a protrusion outwardly extended from one side thereof for providing the inner block 10 to assemble, and the two ends of the case of the upper rail 41, the lower rail 42 of the Window covering 40 respectively have corresponding indentations, thereby through forcing the protrusion of the inner block 10 entering the indentations of the upper rail 41 and the lower rail 42 of the Window covering 40, the inner block 10 can be fixed greatly. Of course, the protrusion and the indentation can be exchanged.

The assembling portion 11 of the inner block 10 can have a screw hole 111 and the case of the upper rail 41, the lower rail 42 of the Window covering 40 can have a through hole (not shown) so that after assembling the inner block 10 and the case of the upper rail 41, the lower rail 42 of the Window covering 40, a fixing element, such as screw, can pass through the through hole and the screw hole for screwing and providing a better fixing.

Since the inner block 10, the connecting block 20 and the outer block 30 are mainly assembled on the ends of the case of the upper rail 41, the lower rail 42 of the Window covering 40, the outline thereof should be corresponded to the section of the ends of the case of the upper rail 41, the lower rail 42, no matter in any shape. For example, as shown in FIG. 1, the section has an approximately rectangular shape, and as shown in FIG. 3, the section of the inner block 10 a, the connecting block 20 a and the outer 30 a can be a long-oval shape so that when the removable block set is assembled in the rails, a more beautiful appearance can be provided.

Please refer to FIG. 4, when assembling on the Window covering 40, the inner block 10, the connecting block 20 and the outer block 30 can be previously assembled to become the removable block set 1, and then, using the assembling portion 11 of the inner block 10, the removable block sets 1 can be assembled in two ends of the upper rail 41 and the lower rails 41 of the Window covering 40.

Thereby, when buying a window covering, people can buy a standard window covering conforming to the width of the window, and if there is no conformed standard window covering, people just buy the removable block sets 1 to assemble in two ends of the upper rail and the lower rail for elongating the length of the rails until the lengths of the rails become slightly longer than the width of the window to facilitate the installation of the window covering. The following takes FIG. 4 for illustration:

When installing the window covering 40, several removable block sets 1 can be assembled in two ends of the upper rail 41 and tie two ends of the lower rail 42 of the Window covering 40. The width of the blinds 44 can be cut first for conforming to the width of the window. Furthermore, as shown in FIG. 5, through the detachable design of the inner block 10, the connecting block 20 and the outer block 30, the number of the connecting block 20 can be properly decreased. By varying the length of the removable block set 1, the length of the upper and the lower rails 41, 42 can conform the width of the window and also successfully complete the installation.

It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed. 

1. A removable block set for a window covering, comprising an inner block, an outer block and at least one connecting block between the inner block and the outer block, wherein: the inner block has an assembling portion formed at one side thereof and has an engaging space formed at the other side thereof, the engaging space having a slot tunnel correspondingly formed at an inner side thereof; the connecting block is assembled in the engaging space of the inner bloc the connecting block has an engaging portion formed at one side thereof, which faces the inner block, the engaging portion having a tenon at an outer side thereof, and the connecting block has the engaging space formed on the other side thereof for engaging with the engaging portion, the engaging space having the slot tunnel formed at the inner side thereof for correspondingly engaging with the tenon; and the outer block is assembled to one side of the connecting block which is opposite to the side thereof facing the inner block, the outer block has an engaging portion formed at one side thereof facing the connecting block for correspondingly engaging with the engaging space of adjacent connecting block, and the engaging portion has the tenon formed at the outer side thereof.
 2. The removable block set for a window covering as claimed in claim 1, wherein the tenon of the connecting block and the tenon of the outer block are formed to be arc protrusions, and the engaging space of the inner block and the engaging space of the connecting block are formed to have arc slot tunnel corresponding to the arc protrusion.
 3. The removable block set for a window covering as claimed in claim 1, wherein the tenon of the connecting block and the tenon of the outer block respectively have slots at two sides thereof.
 4. The removable block set for a window covering as claimed in claim 1, wherein the tenon of the connecting block and the tenon of the outer block are mounted at two edges or four edges of the outer side of the engaging portion.
 5. The removable block set for a window covering as claimed in claim 1, wherein the frame of the connecting block and the frame of the outer block respectively have indentations. 